Answer to Question #204805 in Physical Chemistry for Jake

Question #204805

2)Write the equilibrium expression (K) for:

a)4NH3(g) + 5O2(g) ⇌ 4 NO(g) + 6H2(g)

b)Ag2CO3(s) +H2O ⇌ 2 Ag (aq) + CO3(aq)


I need help with this



1
Expert's answer
2021-06-09T12:54:08-0400

We know that concentration of solid liquid (H2O) does not change with time.

So,

[solid]=1

[liquid ]=1

So,

a)4NH3(g) + 5O2(g) ⇌ 4 NO(g) + 6H2(g)


K= [NO]4[H2]6 [NH3]4[O2]5


(b)Ag2CO3(s) +H2O ⇌ 2 Ag (aq) + CO3(aq)


K=[Ag+][CO32-]


This is the equilibrium expressions because [Ag2CO3]=1 and[CH2O]=1


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